Two dimensional drive system

Abstract

An object of the present invention is to provide a two dimensional drive system driven by fluid pressure. The drive system of the present invention comprises: a pair of X-guides; a pair of Y-guides; an X-rod whose each end is slidably attached to each Y-guide; a Y-rod whose each end is slidably attached to each X-guide; an X-piston section being provided at the midway of the X-rod; a Y-piston section being provided at the midway of the Y-rod; and a moving body having an X-chamber through which the X-rod is pierced and a Y-chamber through which the Y-rod is pierced, the X-chamber being divided into two subchambers by the X-piston section, the Y-chamber being divided into two subchambers by the Y-piston section. With this structure, the moving body is capable of moving in a plane by selectively supplying fluid to each subchamber.

What is claimed is: 
     
       1. A two dimensional drive system, comprising: a pair of X-guides being arranged parallel in an X-direction;   a pair of Y-guides being arranged parallel in a Y-direction perpendicular to the X-direction;   an X-rod being arranged parallel to said X-guides, each end of said X-rod is slidably attached to each Y-guide;   a Y-rod being arranged parallel to said Y-guides, each end of said Y-rod is slidably attached to each X-guide;   an X-piston section being provided at the midway of said X-rod, the diameter of said X-piston section is greater than that of said X-rod;   a Y-piston section being provided at the midway of said Y-rod, the diameter of said Y-piston section is greater than that of said Y-rod; and   a moving body having an X-chamber in the X-direction through which said X-rod is pierced, and a Y-chamber in the Y-direction through which said Y-rod is pierced, whereby said moving body is capable of moving on said X- and Y-rods, said X-chamber being divided into two subchambers by said X-piston section, said Y-chamber being divided into two subchambers by said Y-piston section,   wherein said moving body is capable of moving in a plane by selectively supplying fluid to each subchamber.   
     
     
       2. The two dimensional drive system according to claim 1, further comprising: X-restraining means for restraining the inclination of said X-rod with respect to the X-direction; and   Y-restraining means for restraining the inclination of said Y-rod with respect to the Y-direction.   
     
     
       3. The two dimensional drive system according to claim 2, wherein, said X-restraining means comprising: a pair of first timing belts being arranged parallel to said Y-guides; and   two pairs of first timing pulleys being engaged with each first timing belt, and     said Y-restraining means comprising: a pair of second timing belts being arranged parallel to said X-guides; and   two pairs of second timing pulleys being engaged with each second timing belt.     
     
     
       4. The two dimensional drive system according to claim 2, wherein, said X-restraining means comprising: a pair of first racks being arranged parallel to said Y-guides;   a first shaft being arranged in the X-direction and pierced through said moving body, said first shaft being capable of turning on the axis thereof; and   a pair of first pinions being respectively fixed at each end of said first shaft, said first pinions being respectively engaged with each first rack, and     said Y-restraining means comprising: a pair of second racks being arranged parallel to said X-guides;   a second shaft being arranged in the Y-direction and pierced through said moving body, said second shaft being capable of turning on the axis thereof; and   a pair of second pinions being respectively fixed at each end of said second shaft, said second pinions being respectively engaged with each second rack.     
     
     
       5. The two dimensional drive system according to claim 4, wherein, said X-rod is a hollow pipe and said first shaft is pierced through said hollow X-rod, and   said Y-rod is a hollow pipe and said second shaft is pierced through said hollow Y-rod.   
     
     
       6. The two dimensional drive system according to claim 5, wherein said hollow X- and Y-rods are filled with lubricant.   
     
     
       7. A two dimensional drive system comprising: a pair of X-guides being arranged parallel in an X-direction;   a pair of Y-guides being arranged parallel in a Y-direction perpendicular to the X-direction;   a first X-rod being arranged parallel to said X-guides, each end of said first X-rod is slidably attached to each Y-guides;   a first Y-rod being arranged parallel to said Y-guides, each end of said first Y-rod is slidably attached to each X-guides;   a first X-piston section being provided at the midway of said first X-rod, the diameter of said first X-piston section is greater than that of said first X-rod;   a first Y-piston section being provided at the midway of said first Y-rod, the diameter of said first Y-piston section is greater than that of said first Y-rod;   an X-cylinder section having a first X-chamber in the X-direction through which said first X-rod is pierced whereby said X-cylinder section is capable of moving on said first X-rod, said first X-chamber being divided into two first X-subchambers by said first X-piston section;   a Y-cylinder section having a first Y-chamber in the Y-direction through which said first Y-rod is pierced whereby said Y-cylinder section is capable of moving on said first Y-rod, said first Y-chamber being divided into two first Y-subchambers by said first Y-piston section;   a second X-rod being provided on said X-cylinder section and arranged in the X-direction;   a second Y-rod being provided on said Y-cylinder section and arranged in the Y-direction;   a second X-piston section being provided at the midway of said second X-rod, the diameter of said second X-piston section is greater than that of said second X-rod;   a second Y-piston section being provided at the midway of said second Y-rod, the diameter of said second Y-piston section is greater than that of said second Y-rod; and   a moving body having a second X-chamber in the X-direction through which said second X-rod is pierced, and a second Y-chamber in the Y-direction through which said second Y-rod is pierced, whereby said moving body is capable of moving on said second X- and Y-rods, said second X-chamber being divided into two second X-subchambers by said second X-piston section, said second Y-chamber being divided into two Y-subchambers by said second Y-piston section,   wherein said moving body is capable of moving in a plane by selectively supplying fluid to said first X-subchambers, said second X-subchambers, said first Y-subchambers and said second Y-subchambers.   
     
     
       8. A two dimensional drive system, comprising: a pair of X-guides being arranged parallel in an X-direction;   a pair of Y-guides being arranged parallel in a Y-direction perpendicular to the X-direction;   an X-rod having an X-chamber in the X-direction, said X-rod being arranged parallel to said X-guides, each end of said X-rod is slidably attached to each Y-guide;   a Y-rod having a Y-chamber in the Y-direction, said Y-rod being arranged parallel to said Y-guides, each end of said Y-rod is slidably attached to each X-guide;   an X-piston being movably provided in said X-chamber, said X-piston dividing said X-chamber into two subchambers;   a Y-piston being movably provided in said Y-chamber, said Y-piston dividing said Y-chamber into two subchambers; and   a moving body being pierced by said X- and Y-rods so as to move thereon, said moving body is connected to said X- and Y-pistons so as to move on said X- and Y-rods together therewith,   wherein said moving body is capable of moving in a plane by selectively supplying fluid to each subchamber.   
     
     
       9. The two dimensional drive system according to claim 8, wherein said moving body is connected to said X- and Y-pistons by magnetic force.   
     
     
       10. The two dimensional drive system according to claim 9, wherein said X- and Y-pistons are made of magnet, and said moving body is made of a magnetizable material.   
     
     
       11. The two dimensional drive system according to claim 8, further comprising: X-restraining means for restraining the inclination of said X-rod with respect to the X-direction; and   Y-restraining means for restraining the inclination of said Y-rod with respect to the Y-direction.   
     
     
       12. The two dimensional drive system according to claim 11, wherein, said X-restraining means comprising: a pair of first timing belts being arranged parallel to said Y-guides; and   two pairs of first timing pulleys being engaged with each first timing belt, and     said Y-restraining means comprising: a pair of second timing belts being arranged parallel to said X-guides; and   two pairs of second timing pulleys being engaged with each second timing belt.     
     
     
       13. The two dimensional drive system according to claim 11, wherein, said X-restraining means comprising: a pair of first racks being arranged parallel to said Y-guides;   a first shaft being arranged in the X-direction and pierced through said moving body, said first shaft being capable of turning on the axis thereof; and   a pair of first pinions being respectively fixed at each end of said first shaft, said first pinions being respectively engaged with each first rack, and     said Y-restraining means comprising: a pair of second racks being arranged parallel to said X-guides;   a second shaft being arranged in the Y-direction and pierced through said moving body, said second shaft being capable of turning on the axis thereof; and   a pair of second pinions being respectively fixed at each end of said second shaft, said second pinions being respectively engaged with each second rack.     
     
     
       14. The two dimensional drive system according to claim 13, wherein, said X-rod is a hollow pipe and said first shaft is pierced through said hollow X-rod, and   said Y-rod is a hollow pipe and said second shaft is pierced through said hollow Y-rod.